Online MCQs Test – Gaseous Exchange – Biology 10th

1. Trachea in the center of the thorax bifurcates into two smaller ducts, called:

2. The gaseous exchange takes place at the level of alveoli. This gaseous exchange involves:

3. Respiratory surface possesses the following property:

4. The internal opening of nasal sacs opens into a long tube called:

5. Each lung is soft, spongy and:

6. Which of the following disorder is associated with inflammation of air passageways?

7. The biological functions which perform gaseous exchange:

8. In the lower part of the thorax, lies a sheet of muscles called:

9. It is wrapped in two pleural membranes.

10. It contains vocal cords to produce sound.

11. Each stoma is formed by:

12. In the following, the alveoli are infected so they may be filled with fluid or pus.

13. These are microscopic openings present in the epidermis of leaves.

14. The amount of molecular oxygen present in the air is about:

15. Stomata are present in:

16. Expiration involves:

17. The opening of larynx has a lid like cover called:

18. The respiratory surface of human is:

19. Each bronchus have:

20. Carbon dioxide is taken in the process of: